<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./lib/vue.min.js"></script>
</head>
<body>
    <div id="app">
        <!-- 注意:在遍历对象身上的键值对的时候，除了有值:val和键:key,还有索引 -->
        <p v-for = "(val, key, index) in user">值是:{{ val }}, 键是:{{  key  }}, 索引是:{{index}}</p>
    </div>
    
    <script>
        var vm = new Vue({
            el:"#app",
            data:{
                user:{
                    id: 1,
                    name: '张三',
                    gender: '男'
                }
            },
            methods: {}
        })
    </script>
</body>
</html>